10 Best Pentek Big Blue of 2025

Tested and Reviewed: Top 10 Pentek Big Blue deals with expert ratings from 8.1 to a perfect 10

July 2025 Edition

Editor's Choice

9.7

Pentek

Pentair Pentek 150237 Big Blue Filter Housing, 1" NPT #10 Whole House Heavy Duty Water Filter Housing with High-Flow Polypropylene (HFPP) Cap and Pressure Relief Button, 10-Inch, Black/Blue

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Editor's bottom line:

“This pentek big blue is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

OFFERS THE VERSATILITY TO MEET ALL OF YOUR LARGE-CAPACITY FILTRATION NEEDS, including high-flow and heavy-sediment applications
FITS ALL Pentair Pentek 10" Big Blue cartridges and any 10" x 4.5" heavy duty filter cartridge
EXTRA LARGE HOUSING allows for greater cartridge capacity, reducing the number of vessels required for high flow-rate applications
PRESSURE RELIEF BUTTON ON CAP for easy cartridge changes
1" NPT INLET AND OUTLET PORT on high-flow polypropylene (HFPP) cap

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Picked by 310 people today

9.5

Save 25%

Pentek

Pentair Pentek BBFS-222 Big Blue Three-Housing Filtration System, 1" NPT #20 High Capacity Water Filter Housing, Holds 20" x 4.5" Filter Cartridges

25% Off

Main Highlights

SHIPS COMPLETELY PRE-ASSEMBLED to save valuable installation time and space
THREE BIG BLUE HOUSINGS can house any 20" x 4.5" filter cartridge; ideal for a two-stage sediment/carbon filtration set-up
FILTRATION SYSTEM CONSISTS OF filter housings, wall-mounting bracket and hardware
EQUIPPED WITH PRESSURE RELIEF BUTTON to relieve housing pressure during cartridge change
DURABLE POLYPROPYLENE HOUSINGS have excellent chemical resistance

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9.5

Captain O-Ring

Captain O-Ring - Replacement 151122 O-Rings Compatible with Pentair Pentek Big Blue Water Filters OEM Size ORing Buna-N (3 Pack)

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Main Highlights

Replacement 151122 o-rings compatible with Pentair/Pentek style Big Blue Water Filter Housings (3 Pack)
Includes 3 replacement o-rings (also called seals or gaskets) to repair your leaking water filter housing [OEM UPC: 051678511220 , 885343762095]
151122 OEM Size o-rings are approximately 5.5" Inside Diameter x 5.83" Outside Diameter x 0.165" Thickness. Please confirm that you need this size o-ring and that your filter housing is listed on the list of compatible housings or that your product manual calls for the 151122 o-ring part number or one of the other part numbers listed below.
Direct Replacement for the following part numbers (see description below for full water filter compatibility list): Ace Hardware 4001756; American Plumber 152032, W10-OR; APEC O-RING-HB; Ametek Kleen-Plus 151122-03; Culligan OR-100, 151122-27, 01019189; HomeMaster #Oring122; Pentek 151122, BB BUNA-N
Molded from NSF 61 certified buna-n rubber for safe and clean drinking water. Manufactured and warrantied by Captain O-Ring LLC. Proudly assembled in the USA!

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9.2

Pentek

Pentair Pentek DGD-5005 Big Blue Water Filter, 10-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 10" x 4.5", 5 Micron, Pack of 1

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Main Highlights

KEEP YOUR WATER CLEAN and protect your appliances by removing dirt, sand, silt and particulates. DGD Big Blue water filter cartridges are designed for purity and will NOT impart taste, odor or color to your water
IDEAL HIGH-FLOW PRE-FILTER. Filter density increases toward the cartridge's center resulting in superior particulate reduction and 3X the dirt holding capacity of similar size sediment cartridges
TESTED AND CERTIFIED BY NSF INTERNATIONAL to NSF/ANSI Standard 42 for your peace of mind. Manufactured with 100% pure polypropylene
SIZED FOR USE IN ALL 10 inch Big Blue filter housings (or other heavy duty filter housings) and can replace any 10 inch x 4.5 inch sediment filter cartridge
REPLACE EVERY 6 MONTHS or when you notice a drop in water pressure or water quality for best results and performance

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9.0

Pentek

Pentair Pentek DGD-5005-20 Big Blue Water Filter, 20-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 20" x 4.5", 5 Micron, Pack of 1, White

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Main Highlights

KEEP YOUR WATER CLEAN and protect your appliances by removing dirt, sand, silt and particulates. DGD Big Blue water filter cartridges are designed for purity and will NOT impart taste, odor or color to your water
IDEAL HIGH-FLOW PRE-FILTER. Filter density increases toward the cartridge's center resulting in superior particulate reduction and 3X the dirt holding capacity of similar size sediment cartridges
TESTED AND CERTIFIED BY NSF INTERNATIONAL to NSF/ANSI Standard 42 for your peace of mind. Manufactured with 100% pure polypropylene
SIZED FOR USE IN ALL 20 inch Big Blue filter housings (or other heavy duty filter housings) and can replace any 20 inch x 4.5 inch sediment filter cartridge
REPLACE EVERY 6 MONTHS or when you notice a drop in water pressure or water quality for best results and performance

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8.8

Pentek

Pentair Pentek WP.5BB97P Big Blue Sediment Water Filter, 10-Inch, Whole House Polypropylene String-Wound Filter Cartridge, 10" x 4.5", 0.5 Micron

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Main Highlights

KEEP YOUR WATER CLEAN and protect your appliances by removing dirt, sand, silt and particulates
FITS ALL 10" Big Blue Housing and can replace any 10" x 4.5" sediment filter
ECONOMICAL SOLUTION to reduce fine sediment, including rust, sand and scale particulates
HIGH DIRT-CATCHING CAPACITY AND FLOW RATES due to its string-wound construction
SUITABLE FOR USE IN VARIOUS APPLICATIONS, including drinking water purification, irrigation and industrial processes

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8.6

Pentek

Pentair Pentek GAC-BB Big Blue Carbon Water Filter, 10-Inch, Whole House Heavy Duty Granular Activated Carbon (GAC) Replacement Cartridge, 10" x 4.5"

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Main Highlights

EFFECTIVE REDUCTION OF BAD TASTE & ODORS to provide good general-purpose drinking water
FITS ALL 10" Pentair Pentek Big Blue or other 10" heavy duty housings and can replace any 10" x 4.5" carbon filter cartridge
POST-FILTER HELPS REDUCE CARBON FINES and other suspended particles from the filtered water
NSF INTERNATIONAL tested and certified for your peace of mind
12,500 GALLON CAPACITY. Replace every three months or when you notice a drop in water pressure or water quality

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Best Value

8.3

Save 36%

Pentek

Pentair Pentek EP-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Carbon Block Replacement Cartridge with Bonded Powdered Activated Carbon (PAC) Filter, 20" x 4.5", 5

36% OffFree Shipping

Main Highlights

GREATER CHLORINE TASTE and ODOR REDUCTION than competitive 10 carbon blocks
FITS ALL 20" Big Blue or other heavy duty housings and can replace any 20" x 4.5" carbon filter cartridge
HIGH POROSITY DESIGN helps the cartridge from plugging before its adsorption capacity is exhausted
NSF INTERNATIONAL tested and certified for your peace of mind
44,000 GALLON CAPACITY. Replace every year or when you notice a drop in water pressure or water quality

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8.1

Pentek

Pentair Pentek 150233 Big Blue Filter Housing, 1" NPT #20 Whole House Heavy Duty Water Filter Housing with High-Flow Polypropylene (HFPP) Cap and Pressure Relief Button, 20-Inch, Black/Blue

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Main Highlights

OFFERS THE VERSATILITY TO MEET ALL OF YOUR LARGE-CAPACITY FILTRATION NEEDS, including high-flow and heavy-sediment applications
FITS ALL Pentair Pentek 20" Big Blue cartridges and any 20" x 4.5" heavy duty filter cartridge
EXTRA LARGE HOUSING allows for greater cartridge capacity, reducing the number of vessels required for high flow-rate applications
PRESSURE RELIEF BUTTON ON CAP for easy cartridge changes
DOES NOT INCLUDE MOUNTING HARDWARE or wrench. Specs are 1" NPT inlet and outlet port on high-flow polypropylene (HFPP) cap.

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8.1

Save 20%

Pentek

Pentair Pentek RFC-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Heavy Duty Radial Flow Carbon Replacement Cartridge with Granular Activated Carbon (GAC) Filter, 20" x 4.5", 25 Micron

20% OffFree Shipping

Main Highlights

Reduces sediment and chlorine taste & odor to provide great tasting, clearer water
FITS ALL 20" Pentair Pentek Big Blue or other 20" heavy duty filter housings and can replace any 20" x 4.5" carbon filter cartridge
UNIQUE RADICAL FLOW DESIGN offers low pressure drop, while significantly reducing release of carbon fines commonly associated with GAC cartridges
NSF INTERNATIONAL tested and certified for your peace of mind
100,000 GALLON CAPACITY. Replace every 1 year or when you notice a drop in water pressure or water quality

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Our Best Overall Choice

Best Choice

9.7

Pentek

Pentair Pentek 150237 Big Blue Filter Housing, 1" NPT #10 Whole House Heavy Duty Water Filter Housing with High-Flow Polypropylene (HFPP) Cap and Pressure Relief Button, 10-Inch, Black/Blue

Free Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

OFFERS THE VERSATILITY TO MEET ALL OF YOUR LARGE-CAPACITY FILTRATION NEEDS, including high-flow and heavy-sediment applications
FITS ALL Pentair Pentek 10" Big Blue cartridges and any 10" x 4.5" heavy duty filter cartridge
EXTRA LARGE HOUSING allows for greater cartridge capacity, reducing the number of vessels required for high flow-rate applications
PRESSURE RELIEF BUTTON ON CAP for easy cartridge changes
1" NPT INLET AND OUTLET PORT on high-flow polypropylene (HFPP) cap

Show Price

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